1055721414047 has 16 divisors (see below), whose sum is σ = 1086118921440. Its totient is φ = 1025749939200.

The previous prime is 1055721414029. The next prime is 1055721414049. The reversal of 1055721414047 is 7404141275501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1055721414047 - 2²⁰ = 1055720365471 is a prime.

It is a super-2 number, since 2×1055721414047² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1055721413995 and 1055721414013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055721414049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49044647 + ... + 49066167.

It is an arithmetic number, because the mean of its divisors is an integer number (67882432590).

Almost surely, 2^{1055721414047} is an apocalyptic number.

1055721414047 is a deficient number, since it is larger than the sum of its proper divisors (30397507393).

1055721414047 is an equidigital number, since it uses as much as digits as its factorization.

1055721414047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31354.

The product of its (nonzero) digits is 156800, while the sum is 41.

Adding to 1055721414047 its reverse (7404141275501), we get a palindrome (8459862689548).

The spelling of 1055721414047 in words is "one trillion, fifty-five billion, seven hundred twenty-one million, four hundred fourteen thousand, forty-seven".